340131-68-2Relevant academic research and scientific papers
Synthesis and crystal structure of bis[(4S,5S)-4,5-dihydro-4,5-diphenyl-2-(2′-oxidophenyl-χO)oxazole- χN]copper(II) and its application in the asymmetric Baeyer-Villiger reaction
Peng, Yungui,Feng, Xiaoming,Yu, Kaibai,Li, Zhi,Jiang, Yaozhong,Yeung, Chi-Hung
, p. 204 - 208 (2001)
Two new oxazolines (3 and 4) and their copper complexes (5 and 6) were synthesized. The four compounds were characterized by elemental analysis and 1H-NMR, IR, MS spectrometry. The molecular structure of compound 6 was determined by single-crystal X-ray diffraction analysis. The four coordinate atoms [N(1), N(2), O(2), O(4)] and the central metal atom (Cu) form a saddle configuration. Compounds 5 and 6 were found to be moderately effective in the catalytic asymmetric Baeyer-Villiger reaction of 2-phenylcyclohexanone.
Catalytic asymmetric oxidation of sulfides mediated by a series of novel oxazolines-titanium complexes
Peng,Feng,Cui,Jiang,Chan
, p. 2287 - 2296 (2007/10/03)
A series of chiral oxazoline-titanium complexes were found to be efficient catalysts for the enantioselective oxidation of sulfides. The reactivity and enantioselectivity were strongly influenced by the structure of the oxazolines. When (4S,5S)-4,5-dihydro-4,5-diphenyl-2-(2′-hydroxy-3′-tert- butylphenyl) oxazoline was used as ligand, the sulfoxide was obtained in 96%e.e.
